You are very busy...oh, to have that kind of time.
How long should one person budget to getting the headliner out?
How are you powering the halos? Did you run a new relay? I put projectors in with halos years ago, but only cared about seeing and never wired the halos.
S54 basically revs higher, and that's where most of the additional power lives (if you look at a dyno from stock M54 vs stock S54). They did that by putting killer valvegear and way better oiling on it. FWIW, don't spin M54 over 6k if you like your oilpump nut where it is. M54 harmonics are bad at higher RPM.
That being the case, S54 seems pretty impractical for a 5000lb truck, given it's expensive. Just put a 420g behind a M62 and call it a day. Stock configuration for 545. E38 people do that kind of thing all the time. All the parts already exist. The only trick would be keeping it AWD, and most people don't care for that anyway.
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2001 E53 3.0 5pd
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